More like Demigod 12

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NovaNovel
Samuel R. Delanystandalone novel1968
About quests and revenge.
“The plot concerns the spaceship captain Lorq Von Ray's search for a nova, which will produce the essential power source Illyrion, and his vendetta with the Red family, who seek to kill him.”
from the catalogue
UpliftUniverse
universe13 books1980
About uplift and aliens.
“No species, the Galactics insist, ever climbs to sapience alone.”
from the catalogue
Start with Sundiver →
includes Uplift Storm, Uplift
GaeanSeries
series3 books1979
completed
About aliens, set in outer planets & moons.
“The Gaea Trilogy consists of three science fiction novels by John Varley.”
from the catalogue
Start with Titan →
Big PlanetSeries
series2 books1952
completed
About survival.
“Jack Vance's 1957 novel — an early landmark of the fully realized planetary-romance setting — got a single sequel decades later, Showboat World, revisiting the same world without continuing Glystra's story.”
from the catalogue
Start with Big Planet →
Genesis QuestSeries
series2 books1986
completed
About aliens.
“Aliens receive radio signals containing full DNA info, and reconstruct humanity.”
from the catalogue
Start with The Genesis Quest →
Variable StarNovel
Robert A. Heinlein & Spider Robinsonstandalone novel2006
About coming of age and space exploration, set in spaceship.
“Robinson posted a note on his website in 2009 noting that his agent had sold a trilogy of sequels based on the novel and its characters.”
from the catalogue